Sash fastener



I Agril 19, 1927. J BRADLEY sAsri FASTENER Filed July .24. 1925 teases-sJOHN J. BRADLEY, OF WEST SPRINGFIELD, MASSACHUSETTS.

SASH FASTENER.

Application filed July 24, 1925.

The present invention relates to a sash fastener and has for one of itsobjects to provide a simple, substantial, cheaply manufactured sashfastener which is adapted to be secured to the window sash and which isprovided with two fastening members, one engageable with the casing tofasten the lower sash and the other engageable with the upper sash tofasten same against open- 1 ing movement in unison with the lower sash.

Another object of the invention is to provide a fastener of thecharacter described by which either the upper or lower sash, or both,may be fastened against opening movement, whether partially open orclosed and at any intermediate point between full opening or completeclosure.

A still important object of the invention is to provide a sash fastenerof this nature which is fairly reliable and eficient in operation,strong, durable, not likely to easily become out of order, and otherwisewell adapted for the purpose for which it is designed.

lvith the above and numerous other objects in view as will appear as thedescription proceeds, the invention resides in certain novel features ofconstruction, and in the combination and arrangement of parts as will behereinafter more fully described and claimed.

In the drawinga Figure l is a fragmentary view of a win dow casing andsashes showing my fastener structure associated therewith,

Fig. 2 is a section taken substantially on the line 22 of Fig. 1, and

Fig. 3 is a detail perspective View of the fastener structure.

Referring to the drawing in detail, it will be seen that A designatesthe window casing or frame having slidable therein in the usual mannerthe lower sash B and the upper sash C. A base plate 5 is formed from asingle sheet of metal and is cut out at two points as is indicated at 6and 7, the portion being cut out is then rolled whereby sleeves 8 and 9are formed.

The axes of these sleeves 8 and 9 are disposed rectangularly to eachother, the axis of the sleeve 8 being extended over longitudinally withthe plate 5 while the axis of the sleeve 9 extends transversely of theplate 5. At one end of the plate 5 there is provided a reduced extensionforming a tongue 10 which is bent downwardly to extend into Serial No.45,868.

the channel provided on the side of the lower sash B to receive the sashcord. On one side edge of the base plate there is provided a lateralextension bent downwardly to form the flange 11. It is not necessary touse any fastening elements as the tongue 10 and flange 11 will preventthe baseplate 5 from becoming accidentally removed from the lower sashB.

A U-shaped jack 12 has its intermediate portion rotatable in the sleeve9. Another U-shaped jack 13 has its intermediate portion rotatable inthe sleeve 8. As is shown to advantage in Figs. 1 and 2, one leg of thejack 13 is longer than the other leg and is disposed at a slight anglethereto. The ends of the U-shaped jack 12 are adapted to straddle thesash cord of the lower sash and to engage the casing A so that if anattempt is made to lift upwardly on the lower sash, a cam action willtake place so that the ends of the jack 12 bite into the casing and:1prevent upward movement of the lower sas o The jack 13 has its endsengageable with the upper sash G. As will be seen to advantage in Fig. 2when the sashes are new and relatively tight, the shorter leg of thejack 13 will engage the upper sash first and should an attempt be madeto move the sashes relative to each other, this movement will tend toswing the jack 18 and bring the end of the longer leg into engagementwith the upper sash. If the sashes are loose and worn then the longerleg of the jack 13 will engage.

It is thought that the construction, operation, and advantages of thisinvention will now be clearly understood without a more detaileddescription thereof. It will be apparent that the device willefficiently prevent unauthorized movement of the sashes from the outsideeither when they are fully closed or partially and fully opened.

The present embodiment of the invention, of course, has been disclosedmerely by way of example, and in actual practice it attains the featureof advantage enumerated as desirable in the statement and the abovedescription. Numerous changes in the details of construction and in thecombination and arrangement of parts may be resorted to withoutdeparting from the spirit or scope of the invention as hereinafterclaimed or sacrificing any of its advantages.

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in testimony whereof I afiix my signature.

JOHN J. BRADLEY.

